LIST is slow for 35K mailboxes

[Joseph Brennan]

--On Tuesday, October 9, 2007 14:19 +0100 Ian G Batten 
<ian.batten at uk.fujitsu.com> wrote:

> We have ~35K mailboxes (as reported by ctl_mboxlist -d | wc -l), and
> the LIST takes upwards of 5 minutes.   The imapd spins as much CPU as
> it can get hold of, too.


We have 1,117,961 mailboxes in a murder.  It takes about 1 second
to do LIST "" *  and oddly enough it takes longer, 7 seconds, to do
ctl_mboxlist -d | wc -l

Sorry this doesn't help solve your problem but it proves it should
be a lot faster than that.

Joseph Brennan
Columbia University Information Technology